The average asking price for a home with five or more bedrooms is now £547,500 - up by 23% on a year ago.
Smaller properties have seen much smaller increases in price - just 3% for a four-bed home, and 5% for two bedrooms.
The figures have been produced by a network of independent estate agents.
South West Water will have ‘very hard’ questions to answer, says Health Secretary
Victoria Atkins says 46 people have officially reported symptoms of cryptosporidium, so far
Water CEO apologises for contamination
22 cases of cryptosporidium have been confirmed in Brixham
South Devon water bug could last a week
Compensation of £15 offered
Devoncast - Mayoral mayhem, Bronze Age bounty and a river wrangle
The latest Devoncast podcast is out now
Duo charged over girls death at Exeter nightclub
A 16-year-old died after taking MDMA in Move
